Good news I think. I had to go out today and left them, when I returned there was not an accident anywhere in the house. Keep by fingers crossed this week, but I think I will still play it safe and take them for a vet visit.
I thank all for the advise..

Thanks for all the quick replies.
Our dogs have never been crated so I am not sure if this would add to any problems they are already having. Like I said it just started happening, we have never had a problem with them being alone before. Can they suddenly become anxious about being alone??

Hello,

We have 2 basenjis, one female, 11 and the other male, 3yrs. They are typical basenjis, playful, affectionate and sometimes the younger is a real trouble maker, all of which we have learned to live with and accepted. A few weeks ago after leaving for the evening we noticed that one of them had a accident on their blanket on the floor, we thought it happened because we were later than usual.
But now it happens everytime they are left alone for any amount of time.. I don't know what to do about this new problem or which one is doing it.
The get plently of exercise, walked 4 times a day, they have a back yard to play in, they get lots of attention. I do not make a big deal out of leaving or coming back in..
Am getting tired of washing blankets and carpets on a daily basis…
Any suggestions on how to deal with this would be greatly appreciated.